The present invention comprises a sanitary facility management system as well as a corresponding sanitary facility management method with at least one sanitary installation, which is coupled to a water supply and/or is included in a water circuit and on which at least one operating value of the at least one sanitary installation can be recorded, a sanitary facility control device connected to the at least one sanitary installation comprising at least one data transmitter and at least one signal receiver and a data processing and signal output system communicating with the sanitary facility control device via the at least one data transmitter and the at least one signal receiver, wherein the data processing and signal output system is a system learning by machine and/or a system comprising an artificial neuronal net and/or an expert system.

The present invention provides a leveling differential-pressure diversion peak-shaving water tank with a function of preventing stagnant water and stale water, which comprises a water storage and distribution tank, a water inlet pipeline, a water outlet pipeline and a front tank. The water inlet pipeline is arranged at the upper portion of the water storage and distribution tank and used for feeding water into the water storage and distribution tank. The water outlet pipeline is arranged at the lower portion of the water storage and distribution tank and comprises a main water outlet pipe and a plurality of water outlet branch pipes. One end of each water outlet branch pipe is connected with the main water outlet pipe. The front tank comprises a front tank water box, a front tank water inlet pipeline and a front tank water outlet pipeline. The present invention further provides a water supply pumping station.

A water recirculating device, liter counter, and temperature regulator for showers, which allows the user to predetermine the water temperature required for any bathroom having cold water network and hot water network, whereby any water below the predetermined temperature is recirculated passing through the boiler of the house until it reaches the temperature preset in the device, wherein said device is composed of a housing, a temperature regulator, an LCD display, a LED ring, two water valves; a hot and cold water inlet; a three-way valve; a flowmeter connected to a pump; a thermostatic valve; a servomotor; and an integrated circuit board; and a method.

A water recirculating device, liter counter, and temperature regulator for showers, which allows the user to predetermine the water temperature required for any bathroom having cold water network and hot water network, whereby any water below the predetermined temperature is recirculated passing through the boiler of the house until it reaches the temperature preset in the device, wherein said device is composed of a housing, a temperature regulator, an LCD display, a LED ring, two water valves; a hot and cold water inlet; a three-way valve; a flowmeter connected to a pump; a thermostatic valve; a servomotor; and an integrated circuit board; and a method.

A water delivery system includes a mixing valve operable for delivering a water flow of adjustable temperature from a water source to a dispensing device downstream from the mixing valve; a thermochromic thermal indicator, fluidly coupled between the mixing valve and the dispensing device, that provides a visible indication of the water flow having achieved a predetermined temperature; and a diverter valve, fluidly coupled between the mixing valve and the dispensing device, and operable to direct the water flow selectively either to the dispensing device or back to the water source. The thermal indicator may be a thermochromic PVC conduit, or it may be a fitting having an inlet, an outlet, a thermochromic PVC element therebetween, and a barrier located between the inlet and the outlet so as to define a flow path that includes an interior surface of the thermochromic element.

Methods and systems of providing domestic water service to a commercial/residential building via a water booster pump assembly are disclosed herein. In some embodiments, the water booster pump assembly includes first and second water pipe branch circuits. In some embodiments, each water pipe branch circuit is configured with a backflow preventer and the water pipe branch circuits are fluidly coupled to one another in parallel. In some embodiments, the water pipe branch circuits are further coupled to one another via a crossover branch pipe configured to allow continuous flow through the two backflow preventers. Each water pipe branch circuit may include a pump. The crossover branch allows water to flow through both backflow preventers, even when one pump is inoperative.

The present invention intends to provide a drinking water circulation device (2) for cold water consumption, which is compactly accommodable in a building, universally and easily connectable to different cooling devices, easy to operate and, in addition, little failure-prone and easy to install. This drinking water circulation device (2) comprises a heat exchanger for cooling the drinking water, a return connection (24) for feeding drinking water returned from a circulation pipe into the drinking water circulation device (2), a supply connection (26) for discharging the cooled drinking water from the drinking water circulation device (2), a drinking water circulation pump (10) provided between the return connection (24) and the supply connection (26), a buffer tank (4) for a cooling medium (22), a cooling medium pump (22) provided in a cooling medium flow path between the buffer tank (4) and the heat exchanger (6), a control device (12) for controlling the cooling medium pump (8) and a supply temperature sensor (56), which is associated with the supply and is data-connected to the control device (12).

The present invention intends to provide a drinking water circulation device (2) for cold water consumption, which is compactly accommodable in a building, universally and easily connectable to different cooling devices, easy to operate and, in addition, little failure-prone and easy to install. This drinking water circulation device (2) comprises a heat exchanger for cooling the drinking water, a return connection (24) for feeding drinking water returned from a circulation pipe into the drinking water circulation device (2), a supply connection (26) for discharging the cooled drinking water from the drinking water circulation device (2), a drinking water circulation pump (10) provided between the return connection (24) and the supply connection (26), a buffer tank (4) for a cooling medium (22), a cooling medium pump (22) provided in a cooling medium flow path between the buffer tank (4) and the heat exchanger (6), a control device (12) for controlling the cooling medium pump (8) and a supply temperature sensor (56), which is associated with the supply and is data-connected to the control device (12).

A recirculation valve includes a housing including a hot water fluid passage which is used to allow the hot water to flow through, a cold water fluid passage to allow the cold water to flow through, and a recirculation fluid passage to allow the hot water in the hot water fluid passage to flow into the cold water fluid passage, a water pressure plate provided to close the recirculation fluid passage when the cold water or the hot water is used, and to open the recirculation fluid passage when the cold and hot waters are not used, and a bimetal plate configured to open the recirculation fluid passage as the bimetal plate is spaced apart from a recirculation opening and to close the recirculation fluid passage by making contact with the recirculation opening, and positioned downstream of the recirculation opening in a direction in which the hot water flows.

Systems and methods related to communication with and control of network-enabled water devices and sensors of various water systems are disclosed. Such water systems may include water filtration systems, water reclamation systems, sump pump systems, pool or spa systems, water softening systems, and plumbing systems. Such water devices may include chemical controllers, smart valves, pool pumps, sump pumps, water softeners, residential appliances, and manifolds. Such sensor devices may include flow meters, splash detectors, motion sensors, moisture sensors, humidity sensors, chemical sensors, water level sensors, pressure sensors, and cameras. Data received from network-enabled water devices and sensors may be processed at a remote server or a local controller, which may cause corresponding alerts or maintenance requests to be sent to one or more user devices or service providers or may automatically control one or more of the water devices and sensors based on analysis of the data.